September 11 Terrorist Attacks, 2001 Terrorism -- War on Terrorism, 2001-2009 5 Government policy -- 4 Foreign relations -- 3 Intelligence service -- 2 National security -- 2 more ... War on terrorism, 2001- 2 Evaluation. -- 1 Foreign public opinion 1 Globalization 1 Governmental investigations -- 1 Hijacking of aircraft -- 1 Interviews -- 1 Islamic fundamentalism 1 Mental health services -- 1 Political violence -- 1 Prevention 1 Prevention. -- 1 Psychic trauma -- 1 Psychological aspects 1 Psychological aspects. -- 1 September 11 Terrorist Attacks, 2001 -- 1 Terrorists 1 less ...